Ventilator



J. J. A. ROE.

.VENTILATOR.

APPLICATION HLED'JUNE 5.191s.

1,340,673. nted y.18,1920.

2 SHEETS-SHEET I.

Jaw-entan- Q 1:38 literacy:

1. J. A. ROE.

VENTILATOR.

APPLICATION FILED JUNE 5, 1 91s.

Patenwd May 18, 1920;

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE.

JOHN JAMES AUGUSTUS 3013,01? MANCHESTER, ENGLAND.

VENTILATOR.

Application filed. June 5, 1918.

To all whom it may concern:

.Be it known that I, J OHN James Accus- TUS Ron, a subject of the King of Great Britain and Ireland, and a resident of Manchester, in the county of Lancaster, England, have invented certain new and useful Improvements in Ventilators, of which the following is a specification,

This invention relates to ventilators of the rotary or semi-rotary hit-and-miss type, and has for its object to provide an improved ventilator of this kind.

A ventilator in accordance with the invention is especially applicable for ventilating closed road vehicles, and may, in some cases, be used as a speaking aperture for communication between the driver of the vehicle and the passenger. Embodiments of the invention are, however, also applicable for ventilating buildings, ships cabins, rail way vehicles and other spaces.

According to this invention, a ventilator for the purpose specified comprises an inner member, provided with an approximately semi-circular aperture, and an outer member, provided with a number of small holes and, in some cases, also with a large .hole, which members are screwed together through a hole in the front, side or back of the vehicle and constitute a. chamber where in is arranged a semi-rotary disk valve also provided with an approximately semi-circular aperture, and means for operating it to open and close the aperture in the inner member, and a spring which presses said valve against said inner member.

In the accompanying drawings, Figure 1 is an outside view, Fig. 2 a section and Fig. 3 an inside view of one embodiment of the invention with the valve closed, and Fig. 4- is a side view of the valve detached. Figs. 5, 6 and 7 are similar views to Figs. 1, 2 and 3 respectively, of another embodiment of the invention with the valve open, and Fig. 8 is an inside view, Fig. 9 a side view partly in section, and Fig. 10 a plan of a further embodiment.

Referring to the drawings, a and b are inner and outer members which pass, the

former from the inside and the latter from the outside, through a hole in the support in which the ventilator is fitted, and are connected together by the member a screwing into the member I). The members are provided with flanges a 6 which grip the surrounding support 0 and make a water specification of Letters Patent.

" ventilator.

other Washer may be fitted between the disk Patented May 18, 1920.

Serial No. 238,259.

ing to the aperture a and with a knob d for operating it from the inside to bring its aperture (Z into and out of alinement with the aperture a and so open or close the If desired,'a leather, cork or (Z and the inner member a. An annular flange (Z is'provided on the valve disk (Z to conceal the spring 6, and to serve as a hearing for the valve.

When the ventilator is fitted in the front of a road carriage, the outer member. 6 may be made with a large hole 12 (Figs. 1 and 2) which can be used as a speaking aperture for communication between the passenger and the driver and, in such cases, the disk (Z is also provided with a knob or the like (it on its outside to enable it to be operated by the driver.

lVhen the ventilator is fitted out of handy reach the disk valve (Z may, as shown in Figs. 8, 9 and l0,be operated by a cord attached to the operating knob (Z and having its ends led through a guide 9 on the inner member a. The knob (Z extends into the guide 9 the bottom of which is concaved to prevent the cords from passing through the slot through which the knob enters. A gap 9 is formed in the wall of the guide 9 to afford access to the knob (Z for attaching the cord thereto.

What I claim as my invention and desire to secure by Letters Patent is 1. In a ventilator for road and railway vehicles, ships cabins, buildings and other spaces, the combination of inner and outer members provided with an approximately semi-circular aperture and with a plurality of apertures, respectively, said members being secured together through a hole in the support wherein the ventilator is fitted and forming between them a chamber, a semirotary disk valve located in said chamber and provided with an aperture correspond ing to the aperture in said inner member, an annular flange on said diskvalve, a spring also located in said chamber and pressing said disk valve against said inner member, and means for operating said disk valve.

2. In a ventilator, the combination with inner and outer members having apertures therein, of a semi-rotary disk valve located between said members and provided with an annular bearing flange, a spring surrounding said flange whereby said disk valve is pressed against said inner member, and means for operating said disk valve.

3. In a ventilator, the combination with inner and outer members having apertures therein, of a semi-rotary disk valve located between said members and provided with an annular bearing flange, a spring surrounding said flange and means for operating said disk valve. s

4. In a ventilator provided with inner and outer members having apertures therein, the combination with a semi-rotary disk valve mounted between said members a bearing for said disk valve consisting of an annular flange, of a spring surrounding said annular flange pressing said disk valve against said inner member, and means for operating said disk valve. 5. In a ventilator the combination of outer and inner members having apertures therein engaging respectively the outer and inner walls of the chamber to be ventilated, the two members having a screw-threaded connection, of a semi-rotary disk valve mounted between said outer and inner members, a bearing for said disk consisting of an annular flange, a spring surrounding said annular flange and urging said disk valve against said inner member, and means for operating said disk valve.

In witness whereof I' have hereunto set my hand.

JOHN JAMES AUGUSTUS ROE. 

